Home / 19,860,443.84-27,419,640.08-15,747,090.50

Finding the Fourth Proportional to 19,860,443.84, 27,419,640.08 and 15,747,090.50

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Solution

The fourth proportional to 19,860,443.84, 27,419,640.08 and 15,747,090.50 is: 21,740,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860,443.84 : 27,419,640.08 = 15,747,090.50 : x
  2. Step 2: Convert to fraction form
    19,860,443.84/27,419,640.08 = 15,747,090.50/x
  3. Step 3: Cross multiply
    19,860,443.84x = 27,419,640.08 × 15,747,090.50
  4. Step 4: Simplify right side
    19,860,443.84x = 431,779,553,807,000.88
  5. Step 5: Solve for x
    x = 431,779,553,807,000.88/19,860,443.84
  6. Step 6: Final answer
    x = 21,740,679.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.